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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/12/03 10:16:00 UTC

[jira] [Updated] (FLINK-15030) Potential deadlock for bounded blocking ResultPartition.

     [ https://issues.apache.org/jira/browse/FLINK-15030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-15030:
-----------------------------------
    Labels: pull-request-available  (was: )

> Potential deadlock for bounded blocking ResultPartition.
> --------------------------------------------------------
>
>                 Key: FLINK-15030
>                 URL: https://issues.apache.org/jira/browse/FLINK-15030
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Network
>    Affects Versions: 1.9.0, 1.9.1
>            Reporter: Yingjie Cao
>            Assignee: Yingjie Cao
>            Priority: Major
>              Labels: pull-request-available
>
> Currently, the BoundedBlockingSubpartition relies on the add of the next BufferConsumer to flush and recycle the previous one, which means we need at least (numsubpartition + 1) buffers to make the bounded blocking ResultPartition work. However, the ResultPartitionFactory gives only (numsubpartition) required buffers to the BoundedBlockingSubpartition which may lead to deadlock.
> This problem exists only in version 1.9. In version 1.10 (master), this problem has been fixed by this commit: 2c8b4ef572f05bf4740b7e204af1e5e709cd945c.



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